Python – Find Base-2 Logarithm – log2() Function with Examples

Python math Library, Python Reference

log2() function is used to find the the base-2 logarithm of x in Python for the given input(x – parameter).

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Syntax of log2() Function

The syntax of log2() function in Python is:

math.log2(x)

 

Parameters of log2() Function in Python

x – Where x is any valid python number (positive or negative). This parameter is required.
Note: If the x parameter is not a number, log2() function will return an Error.

 

Compatibility

log2() function is available and compatible with Python 3.3 and above versions. This function is a part of python standard math library.

 

Return Value of log2() Function in Python

log2() function returns the base-2 logarithm of x for the given input.

 

Python log2() Function Example

# import math library
import math
print(math.log2(-0.2))
print(math.log2(0))
print(math.log2(0.2))
print(math.log2(77))
print(math.log2(-3677))

Output: